I've inherited a 1992 4Runner 3.0 EFL V6 manual from my mother. The AC compressor recently froze up and I need to replace it. But I also know I need to update the system to the new one. Can anyone help me with locating the type of compressor I need, and any other advice for replacing the needed things before I have a new system flushed and recharged with modern refrigerant. Thanks!